Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 65 for “"Titratable acidity"”.
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Japanese beetle Popillia japonica Newman: foliar feeding on wine grapes in Virginia
… fruit with lower soluble solids and higher total titratable acidity at harvest, but did not affect pH, sugar per berry, berry weight, yield, leaves per vine or shoot length. Intensive previraison feeding also resulted in fruit with higher total titratable acidity. All other parameters were …
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A study of the natural acidity of milk in southwest Virginia
… interest has been aroused over the topic of acidity of milk in southwest Virginia. Certain manufacturers of skin milk powder have manufactured products, which upon being reconstituted have exceeded the government limits in titratable acidity to be classified as "Extra Grade." This is the …
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Studies in Blackberry: Development and Implementation of a Phenotyping Protocol for Blackberry Seedling Populations and Impact of Time of Day of Harvest on Red Drupelet Reversion for University of Arkansas Blackberry Genotypes
… berry weight, soluble solids content, pH, and titratable acidity). Multivariate analysis indicated that quantitative measurements, rather than qualitative, were best for phenotypic resolution, particularly for specific traits contributing to larger overall characteristics. Fruit compositional …
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Fermented foods production using isolated Lactobacillaceae species for the improvement of vaginal health: the case of mageu and yoghurt
… the products were analysed by measuring titratable acidity, lactic acid and ethanol concentrations, total solids content, viable cell counts, qualitative analysis and shelf-life. Four mageu samples were then analysed for their consumer acceptability by an untrained consumer panel. The …
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Incorporation of Acid Whey Powders in Probiotic Yogurt
… Yogurt samples were analyzed for changes in titratable acidity, pH and counts of yogurt and probiotic bacteria during manufacture. Fresh yogurts were also analyzed for viscosity, firmness, and syneresis. Changes in titratable acidity, pH, and bacterial counts 0 were also recorded after 1, 10, …
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The effect of dietary fiber on the physio-chemical and sensorial properties of frozen yogurt
… conducted on the treatments before being frozen. Titratable acidity and pH were also measured on the treatments before and after being frozen. A descriptive sensory analysis, hedonic sensory study, viscosity, texture analysis, and melt rate test were conducted during storage. Lactic acid bacteria …
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Vineyard soil matters: exploring the influence of soil physical and chemical properties on Eastern U.S. grape production
… positive relationships between topsoil and fruit titratable acidity, suggesting that the fruit was ripening earlier in vines growing in thinner topsoil. Topsoil depth better explained differences in fruit titratable acidity than other explanatory variables including crop load and sunlight exposure …
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Postharvest Storage and Nutraceutical Evaluation of Muscadine Grapes (Vitis rotundifolia Michx.)
… composition attributes including berry volume, titratable acidity (TA), pH, soluble solids (%), soluble solids to titratable acidity ratio (SS/TA), color (L*, Chroma, and hue), firmness (force to penetrate berry skins), weight loss (%), and unmarketable fruit (%) were evaluated every 7 d for …
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Impact of Gamma Irradiation on Post-harvest Disorders in 'Bartlett' Pears
… and quality factors such as color, texture, titratable acidity and soluble solids content. While irradiation delayed ripening as evident by a delay in the climacteric peak and color change from green to yellow, the longer that pears were stored, the shorter the duration of ripening during …
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The Effects of the Storage Conditions of the Juice and the Effects of Nutrient Supplementation on Wine Fermentation
… sugar, nitrogen, bound and total SO2, pH, titratable acidity, volatile acidity, organic acids, and phenols. Sensory evaluation was also performed. There were some significant differences between the different wines, but none of the wines were considered significantly better than the others …
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Quantification of sugars and organic acids in 210 cucumber (cucurbis sativus) varieties for genome-wide association studies (GWAS)
… liquid chromatography (HPLC), pH, titratable acidity (TA), and three main organic acids via HPLC in 210 GWAS cucumber samples. A histogram and Agglomerative Hierarchical Clustering (AHC) were performed for each measured variable. The °Brix ranged from 1% – 4.6%. The content of …
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Effect of post-harvest treatment on ripening and quality of tomato fruit using ozone. Application of different ozone doses as controlled atmosphere storage for delay ripening and maintaining the quality of tomatoes and effect of ozone on antioxidant and sugar compounds at different stages of tomato fruit ripening.
… weight loss, Total Soluble Solids (TSS), titratable acidity, total ascorbic acid and carotene) of the ripening. The variety Elegance tomatoes were selected and the fruits were graded by colour and subjected to treatment with ozone (in doses 0 (clean air), 0.25, 0.50, and1.00 mg O3/g …
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Optimization of Growth Conditions of Selected Exo-Polysaccharides Producing Lactic Acid Bacteria in Whey Mineral Concentrate
… added nutrients. The samples were analyzed for titratable acidity, pH and microbial counts at 4 h interval for 24 h. Viscosity of the fermented WMC at 20°C was measured after 24 h of incubation and overnight cooling (7°C). Both cultures grew well at all total solid levels ( 5 to 10%) in WMC. The …
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EXPLORING THE IMPACT OF PRESSING: FROM GRAPE COMPOSITION TO SPARKLING WINE PRODUCTION.
… a base wine with specific features, such as high acidity, and low pH and phenols. The general objective of the PhD thesis was to address the knowledge gap existing with regard to grape, must, and base and sparkling wine composition based on the pressing conditions applied. Grape juice was obtained …
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Impact of foliar molybdenum application in acutely deficient vineyard on wine quality
… Among grape juice parameters: pH, Brix and titratable acidity, in 2017 samples, Brix was higher in molybdenum-treated vines compared with the untreated control, but no difference was found in the rest of the juice parameters. In 2018 and 2020 only titratable acidity showed significant …
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An in vitro investigation into the effects of sports gels/drinks on human hard tissue – Consumer habits and Dentist knowledge
… general dental practitioners<br/>• Determining titratable acidity of commonly used drinks/supplements using 0.1M NaOH.<br/><br/><b>Summary</b><b><br/></b>• Measuring contact angle of popular drinks/supplements on 3 different surfaces (tooth/ostrich egg/glass slide)<br/>• Measuring the effects of …
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Electronic Nose Evaluation of Grape Maturity
… evaluated by measuring berry weight, pH, Brix, titratable acidity, total phenols, color intensity, hue, total anthocyanins, and total and phenol-free glycosides. Results were compared, using discriminant and canonical discriminant analysis, with analysis of headspace volatiles via the hand-held …
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Ultrafiltering Acid Whey for Incorporation into Probiotic Yogurt
… starter culture. Yogurts were analyzed for pH, titratable acidity and viable counts (yogurt and probiotic) during manufacture and during storage on 10, 20, 30 and 40 d. Yogurt samples were also analyzed for syneresis, gel strength and viscosity on d 3. A panel of 5 trained judges performed …
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Rapid Assessment of Quality Parameters in Processing Tomatoes using Handheld and Bench-top Infrared Spectrometers and Multivariate Analysis
… (citric, malic, and glutamic), soluble solids, titratable acidity, and pH in these juices were determined using standard reference methods. For FT-IR analysis, juices were centrifuged, filtered through Whatman¿¿ filter (0.45¿¿m), and directly applied to the FT-IR crystal (15-40¿¿L) to obtain …
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